Machine for wrapping cylindrical objects



Feb. 19, 1929. 1,702,276

G. A. SHAFFER ET AL MACHINE FOR WRAPPING CYLINDRICAL OBJECTS Filed June 6, 1927 4 Sl'xeets-Sheel l @www W @H107 ne 1f Feb. 19, 1929.

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' G. A. sHAr-'FER ET AL MACHINE Fon wRAPPING GYLINDRICAL OBJECTS Filed June e, 192'/ 4 sheets-sheet 3 @Tura/@IF Feb. 19, 1929.

G. A.` SHAFFER ET AL MACHINE FOR WRAPPING CYLINDRICAL OBJECTS Filed June 6, 1927 4 Sheets-Sheet 4 Patented Feb. 19, 1929.

UNITED STATES 1,702,276 PATENT OFFICE.

p Elrldllll'lll A. SHAFFER AND FRANKLIN "H. WIRTZ, OF GREEN BAY, WISCONSIN, ASSIGNORS TO FORT HOWARD PAPER COMPANY, OF F WISCONSIN.

GREEN BAY, WISCONSIN, A CORPORATION Application led .Tune 6, l

'The device relates to a machine for Wrapping cylindrical objectsand has as an object the provision of placing a Wrapper upon such an object and inserting the ends of the Wrapper into the hollow of the cylinder.

A further object of the invention is to provide a machine for automatically placing a wrapper upon a cylinder and tucking the ends of the Wrapper into the interior of the cylinder. c

lt is a further object of the invention to Wrap such cylindrical objects automatically and eject the same from the machine when Wrapped.

As an illustrative embodiment of the invention there is shown -a machine for Wrapping rolls of toilet paper. The illustrative embodiment of the invention is shown in the accompanying drawings wherein Figure 1 is a side elevation omitting the base upon which the machine stands;

Fig. 2 is a detail side elevation partly broken away of a portion of a belt laced to a sprocket chain;

Fig. 3 is a vertical section on line 3-3 ot Fig. 1;

F ig. 4 is a detail plan View of one of the tuclrer controlling pins;

5 is a detail section on line 3-3 of Fig. l shown upon an enlarged scale showing the tuclrin means in operated position;

Fig. 6 is a detail vertical section on line the @l Fig. 5;

Fig. 7 is a detail section on line 7-7 of Fig. 5; and

F ig. 8 is a detail view of a modication.

its shownthe device comprises a frame 10 having mounted therein an object-carrying member 11 Irigidly mounted upon shaft 12 journalled in bearings 13, 14, the member 11 haring recesses 15, shown as four in number, tor reception of the objects to be wrapped.

.ls shown the objects to be wrapped, in the present instant-e illustrated as rolls of toilet paper 16, are ted to the machine in the position shown at the right in Fig. 6 from one end oit member 11 and are retained in the recess to which they are :ted by means of a shield 17 rigidly mounted between membersA 13 oiti the trame.

For the purpose of the invention, the member 'l1 is given quarter revolutions at stated intervals and is stationary between said movements of revolution. To provide the 1927. Serial No. 196,798.

movement of revolution of the member 11, a Geneva gear 19 is shown mounted upon shaft 12 actuated by a roller` 20 mounted upon afstub shaft 21 carried by an arm 22 rigidly mounted upon a shaft 23 driven by means of a sprocket chain 24 passing about sprocket Wheels 25, 26, the sprocket wheel 26 being vmounted upon a shaft 27, which in turn is driven by a sprocket wheel 28 to be described.

vWhen the member 11 is given a quarter revolution, the object to be wrapped is carried from the position shown at the right in Fig. 6 to a position vertically under the shaft 12 in which position the object rests upon a belt 29, which belt passes about rollers 30, 31 mounted upon shafts 32, 33 journalled in lugs 34, 35 which in turn are carried by members 36, 37 supported upon pins 38, 39, rigidly mounted in the frame of the machine. To tighten the belt 29, the lugs 34, 35 are shown as provided With screws 40, the journals of the shafts 32, 33 being in the form of slots to permit of vertical movement in their bearings. The belt 29 is shown as passing about pulleys 41, 42 and an idle pulley 43, the pulley 41 being driven by a sprocket Wheel 44 .through the medium of a chain 45 also passing about a sprocket wheel 46 upon shaft 47.

To carry the wrappers about the object to be wrapped, there is shown a belt 48 shown as laced at its edges to sprocket chain 28 which may be desirably accomplished in the manner shown in Fig. 2 by providing the pins of the sprocket chain at one end with eyes 49, through which eyes and through holes in the edges of the belt 48, lacings 50 are passed. The belt 48 is not coextensive with the chain 28, oneend of the belt is shown as terminat ing at 51 in Figs. 1 and 6 and the other end ofthe belt terminating at 52 in Fig. 1.

The movement of chain 28 is so timed that the Wrapped object may be ejected when the belt is at the position shown in Fig. 1, the ro1ler 21 at this phase being in a position to cause a revolution of the Geneva gear in the direction shown by the arrow in Fig. 1 for ejection of the Wrapped object and the bringing of successive objects to be wrapped into position upon the belt 29. The end 52 of the belt during this movement is travelling in the direction of the arrow in Fig. 1 and is adapted to reach the point 53 in said ligure at the time when the object to be wrapped is in place and a wrapper indicated at 54, Fig.

6, is fed down chute 55 and between the object to be wrapped and the belt 29. The end of the wrapper carried by the belt 29 and the object to be wrapped will reach the point 53 in correct time to be gripped between belt 48 and the object to be wrapped and carried around the object, the object to be wrapped being caused to revolve jointly by belts 29 and 48.

To bring the wrapper 54 down around the ends of the object to be wrapped and to a position to be tucked into the interior of the object, there are shown spiral channels 56 formed in members 36, 37, one end of the wrapper being shown in dotted lines in Fig. 3 at 57.

To force the ends of the wrapper into the interior of the cylinder, there are shown sleeves 58, 59, sliding upon pins 60, 61 carried in brackets 62, 63 mounted upon pins 38, 39. A desirable means for mounting the 'brackets 62, 63 upon the pins is shown at the left in Fig. 3 at 64 comprising cap screws clamping the brackets upon the mounting 65 of the pins 38, 39.

To actuate the sleeves 58, 59, there are shown pairs of arms 66, 67 having connection lwith the sleeves through blocks 68, 69, the arms being pivoted at 70, 71 upon the 'housing of shaft 23. The upper ends of the arms 66, 67 are shown as formed with inwardly projecting studs 72, 73 carrying cross members 74 abuttingagainst ins 75, 7 6 telescoping in projections 77, 7 8 romthehousing of shaft 23.

The pins 7 5, 76 are adapted to drop into cam recesses 79 in the hubs 80, 81, at the proper moment thereby permitting springs 82, 83, to cause sudden movements inwardly of the sleeves 58, 59 upon the pins 60, 61 thereby catching the ends of the wrapper and forcing the same into the interior of the cylinder as clearly shown in Fig. 5. Continued revolution of the hubs 80, 81 by virtue of the cam surface 84, Fig. 4, will stretch the springs 82, 83 and return the arms 66, 67 to the position shown in Fig. 3.

The chain 28 is shown as passing about sprocket 85 mounted upon shaft 47, which shaft is driven by a belt pulley 86 which provides power for operation of the machine. The chain 28 is also shown as passed about sprockets 87, 88, 89, and 90. The sprockets 89 are mounted in journals 91, 92, through which the sleeves 58, 59 slide and these sprockets are therefore concentric with the object to be wrapped in its wrapping position.

The machine of the invention may be adapted for wrapping solid cylindrical objects such as tin cans by utilizing grooved menibers such as shown in Fig. 8 at 37 in place of the first described members 36, 37 with the omission of the arms 66, 67, the sleeves 58, 59 and the rods 60, 61. The groove 56 in this form terminates at the center of the member 37 and the wrapper for this use will project beyond the ends of the cylinder to be Wrapped a distance equal to the radius of the cylinder. For this use the ends of the wrapper will have an adhesive applied by means not shown.

The labels 54 may be fed to the machine singly in timed relation by means not shown.

The operation of the device will be clear from the above description. Minor changes may be made in the physical embodiment of the invention within the scope of the appended claims without departing from its spirit. Y

We claim:

1. A wrapping machine comprising, in combination, means for revolubly supporting a cylinder to be wrapped, a belt for inducing revolution of the cylinder and for lacing a wrapper thereabout with the en s of the wrapper projecting beyond the ends of the cylinder, stationary means mounted closely i adjacent the wrapping position of the ends of such cylinder, for gathering the projecting wrapper ends in superposed relation to the ends of the cylinder.

2. A wrapping machine comprising, in combination, means for revolubly supporting a cylinder to be wrapped, spaced members provided with `rspiral channels to gather the ends of a wrapper about the ends of the wall of the cylinder, a member having a cylinderreceiving recess mounted for revolution between said members, an interrupted belt, properly timed means to carry said belt into said recess and about 'the contained cylinder to be wrapped, acting to induce revolution of the cylinder and to carry the wrapper thereabout thereby gathering the projecting ends of the wrapper about the ends of the wall of the cylinder and means reciprocating axially within said members to insert the gathered ends of the wrapper within the hollow of said cylinder.

j 3. A wrapping machine comprising, in combination, a revoluble member having a cylinder receiving recess, spaced members having spiral grooves between which said rst named member revolves, means for supporting the cylinder to be wrapped contained in said recess between said spaced members, an interrupted belt, timed driving means for said belt permitting revolution of the first named member through the interruption of" the belt and acting to carrying said belt into said recess and about the cylinder contained therein acting to induce revolution of the cylinder and to carry the wrapper thereabout, means to guide a wrapper through the interruption of said belt into position to be gripped between said belt and cylinder with the projecting ends of the wrapper extending into said grooves whereby said ends are gathered about the ends of the wall of the cylinder, and means for inserting the gathered combination, a pair of idle rollers, a belt passing about said idle rollers, driving means tor said belt, spaced members provided with spiral grooves opening into their contiguous faces, a revoluble member having a cylinder receiving recess mounted for revolution between said spaced members adapted to bring a cylinder contained in said recess to position upon said belt for support and consequent revolution by said belt, an interrupted belt, spaced driving means for said belt journalled upon axes coincident with the axis of revolution of said cylinder in wrapping position, said driving means timed to permit of the introductionN of the cylinder between said spaced members through the interruption of the belt, said interrupted belt carried by said driving means into said recess and about the cylinder contained therein to assist in the revolution thereof, means for guiding a wrapper between said first named belt and the cylinder supported thereby whereby to cause said wrapper to be gripped between the interrupted belt and cylinder with its ends projecting into said grooves and means to insert the ends of the wrapper gathered by said grooves about the end wall of the cylinder, into the interior of the cylinder.

5. A wrapping machine comprising, in combination, a revoluble member having a plurality of cylinder receiving recesses, means to retain cylinders in said recesses during revelution of said member to cylinder Wrapping position, idle rollers, a belt passing about said idle rollers to revolubly support a cylinder to be wrapped in said recess, means to drive said belt, an interrupted belt, sprocket chains to which said belt is laced, sprocket wheels mounted axially of the wrapping position of said cylinder, means for driving said sprocket chains in timed relation to permit of the revolution of said first named member through the interruption of the belt, means to guide a wrapper to position to be gripped between said elts and the cylinder to be wrapped, spaced members having inwardly opening spiral grooves between which members said first member revolves, means reciprocating axially of said spaced members acting to insert the ends of a wrapper gathered by said grooves into the interior of the cylindern 6. A wrapping machine comprising, in combination, spaced members having inwardly opening spiral grooves, means to carry a cylinder to be wrapped into the space between said members, means torevolve said cylinder in wrapping position and to carry a Wrapper thereabout with its ends in said grooves to be gathered thereby about the ends of the wall of the cylinder, a stationary pin projecting axially of each of said spaced members, a

sleeve sliding upon each pin, and means for sliding ,said sleeves inwardly to insert the gathered ends of the wrapper into the interior of the cylinder.

7. A wrapping machine comprising, in combination, spaced members having inwardly opening spiral grooves, means to carry a cylinder to be wrapped into the space between said members, means to revolve said cylinder in wrapping position and to carry a wrapper thereabout with its ends in said grooves to be gathered thereby about the ends of the wall of the cylinder, atstationary pin projecting axially of each of said spaced members, a sleeve sliding upon each pin, an arm for causing reciprocation of each of said sleeves, cam means for actuating said arms to cause said sleeves to insert the gathered ends of the wrapper into the interior of the cylinder.

8. A wrapping machine comprising, in combination, spaced members having inwardly opening spiral grooves, means to carry a cylinder to be wrapped into the space between said members, means to revolve said cylinder in wrapping position and to carry a wrapper thereabout with its ends in said grooves to be gathered thereby about the ends of the wall of the cylinder, a stationary pin projecting axially of each of said spaced members, a sleeve sliding upon each pin, an arm for causing reciprocation of eachv of said sleeves. a spring for normally pressing each arm inwardly, a pin acting upon each arm against the action of said spring, a revoluble member having a notch to recelve said pin allowing action of said spring to insert the gathered ends of the wrapper into the interior of the cylinder and having cam means to cause said pin to remove said sleeve from its inward position.

9. A wrapping machine comprising, in combination, spaced members having inwardly opening spiral grooves, a member mounted for revolution between said spaced members having a plurality of cylinder receiving recesses, means for causing partial revolution of said revoluble member with rest periods between said motions of revolution, means for supporting a cylinder to be wrapped in said recess in wrapping position, an interrupted belt, means for driving said belt in timed re ation to allow revolution of said irst named member through said interruption and acting to carry said belt into one of said recesses at each period of rest of said firstnamed member, means for guiding a. wrapper to position to be gripped between said cylinder and belt while contained in one of said recesses whereby to carry said wrapper about the cylinder with its ends projecting into said grooves and means for insertin the ends of said wrapper into the interior o? the cylinder.

10. A wrapping machine comprising, in combination, spaced members having spiral grooves opening to their inner faces, a revoluble member having a plurality ofcylinder receiving recesses, a Geneva gear for intermittently causing partial revolution ot said revoluble member, means for driving said Geneva gear, means for passing a Wrapper `about. the cylinder in one of said recesses with its ends projecting into said spiral grooves, a stationary pin projecting axially through each of said spaced members to positions adjacent the inner faces thereof, a sleeve reciprocably mounted upon each of said pins, an arm pivotally connected to each of said sleeves, said arms pivoted at points remote from said sleeves, aspring tending to torce said sleeves toward the cylinder to be Wrapped, cam means permitting the action of said spring and acting to overcome said spring after the actuation of said sleeves and acting tohold said sleeves stationary betiveen said actuations, saidsleeves acting to torce the ends ot a Wrapper gathered by said grooves about the ends of the wall of the cylinder being Wrapped into the interior of the cylinder.

11. A Wrapping machine comprising, in combination, spaced members having spiral grooves opening to their inner faces, a revoluble member mounted for revolution betvveen said spaced members and having a plurality of cylinder receiving recesses. a belt for support of a cylinder in wrapping position in said recesses in turn, and interrupted belt timed to permit revolution of said revoluble member, means to drive said interrupted belt about a cylinder in one of said recesses in Wrapping position, said belts acting to cause revolution of the cylinder and to carry a Wrapper thereabout with its ends projecting into said grooves wherebyl to gather the ends of the Wrapper about the ends of the Wall of the cylinder, means to drive each of said belts, a Geneva gear for causing successive partial revolutions of said revoluble member separated by periods of rest thereof, means for driving said Geneva gear in timed relation to said interrupted belt, means reciprocating upon the axes of said spaced members in telescopic relation to said members for insertion of the gathered ends of the wrapper into the interior ot the cylinder and cam means for actuation ot said reciprocable members.

12. A wrapping machine comprising, in

I combination, means for placing a Wrapper about a cylinder, integral, stationary means mounted at the ends of the wrapping position of such cylinder for gathering the ends of the Wrapper about the ends of the wall of the cylinder and means reciprocating axially of said gathering means to insert the gathered Wrapper ends into the interior of the cylinder.

13. A Wrapping machine comprising, in combination, means for carrying a Wrapper about a cylinder with its ends projecting beyond the ends of the cylinder,means acting simultaneously with said iirst named means to carry said ends spirally toward the axis ot the cylinder whereby to gather the ends of the Wrapper about the ends of the Wall of the cylinder and means reciprocating axially of the cylinder to insert the gathered ends into the interior of the cylinder.

14. A wrapping machine comprising, in combination, means for revolubly supporting a cylinder to be Wrapped by contact with its circumference, a member supported axially of the Wrapping position ot' the cylinder having a spiral groove opening-toward the cylinder and opening to the circumference of the member parallel with its axis, means for guiding the edge of a Wrapper tangentially to the cylinder With an end entering said circumferential opening, means for carrying the Wrapper about the cylinl.

der, said groove gathering said end about one end ofthe Wall ot the cylinder and means for inserting the thus gathered end of the Wrapper into the interior of the cylinder.

15. A Wrapping machine comprising, in combination, automatically acting means for successively moving cylinders to be Wrapped to Wrapping position and for subsequently moving Wrapped cylinders to discharging position, automatically acting means for placing Wrappers about said successive cylinders, automatically acting means for gathering the ends of the Wrappers about the ends ot the Wall of each cylinder and 'automatically acting means for inserting the gathered ends of the wrappers into the interiors of the cylinders.

16. A Wrapping machine comprising, in combination, means for successively moving cylinders to be Wrapped to Wrapping position and for discharging Wrapped cylinders, means for placing Wrappers about said successive cylinders, means acting simultaneously with said last named means to gather the ends of the Wrapper about the ends of the cylinder, means for inserting the gathered ends of the wrapper into the interior of the cylinder and means for driving each of said means in properly timed relation.

17. A Wrapping machine comprising, in combination, spaced members having inwardly opening spiral grooves, a cylinder carrier acting between said spaced means, means for revolving a cylinder between said spaced means While retained by said carrier and for placing a wrapper thereabout With its ends projecting into said grooves, said grooves acting togather said Wrapper ends about the ends of the cylinder.

18. A wrapping machine comprising, in combination, spaced members having inwardly opening spiral grooves, said grooves also opening to the circumference of each member parallel to the axis thereof, means for revolubly supporting a cylinder to be Wrapped beabout the cylinder 'with consequent gathering of said ends about the ends of the cylinder.V

' 19. A Wrapping machine comprising, in

combination, a frame, a shaft journalled in said frame, a member having recesses for reception of cylinders to be Wrapped and for moving such cylinders to Wrapping position, a Geneva gear tired upon said shaft for in termittently moving said member, means for intermittently driving said Geneva gear, spaced sprocket Wheels journalled in said frame upon the axis of a cylinder in wrapping position in one of said recesses, sprocket chains mounted upon said sprocket Wheels, a divided belt carried by said chains and adapted to pass into said recesses closely adjacent the inner surface thereof, means to revolubly support a cylinder housed in said recess and means to guide a Wrapper to the surface of a cylinder to be 'Wrapped to a position toV be gripped between the cylinder and said divided belt whereby to carry the Wrapper about the cylinder.

20. A wrapping machine comprising, in combination, a frame, a shaft journalled in said frame, a member having recesses for reception of cylinders to be wrapped and for moving such cylinders to Wrapping position, a Geneva gear fixed upon said shaft for intermittently moving said member, means for intermittently driving said Geneva gear,

spaced sprocket Wheels journalled in said frame upon the axis of a cylinder in Wrapping position in one of said recesses, sprocket chains mounted upon said sprocket Wheels, a divided belt carried by said chains and adapted to pass into said recesses closely adjacent the inner surface thereof, means to revolubly support a cylinder housed in said recess and means to guide a Wrapper to the surface of a cylinder to be wrapped to a position to be gripped between the cylinder and said divided belt whereby to carry the Wrapper aboutthe cylinder, stationary means mounted for revolution of said first named member therebetween acting to gather the ends of said wraper into contact with the end of the cylinder 1n the act of passing the Wrapper thereabout. 21. A wrapping machine comprising, in

combination, a frame, a shaft journalled in said frame, a member having recesses for reception of cylinders to be Wrapped and for moving such cylinders to wrapping position, a Geneva gear fixed upon said shaft for intermittently moving said member, means for intermittently driving said Geneva gear, spaced sprocket Wheels journalled upon t-ubular journals in said frame upon the axis of a cylinder iniwrapping position in one of saidrecesses', sprocket chains mounted upon said sprocket vvheels, a divided belt carried by said chains and adapted to pass into said recesses closely adjacent the inner surface thereof, means to revolubly support a cylinder housed in said recess and means toguide v a -vvrapper to the surface of a cylinder to-be wrapped to a position to be gripped between the cylinder and said divided belt whereby to carry the Wrapper about the cylinder, means to gather the ends of the wrapper about the ends of the cylinder, means reciprocating in said tubular journals to insert the gathered ends of the Wrapper into the interior of the cylinder.

22. A wrapping machine comprising, in combination, a frame, a shaft 'ournaled `in said frame, a member mounte upon said shaft having recesses to receive cylinders to be wrapped, a Geneva gear mounted upon said shaft for intermittent revolution of said member, a cylinder supporting belt traveling over idle rollers in a position to support a cylinder to be Wrapped while housed in said recess, means to drive said belt, a pair of spaced sprocket wheels j ournaled in said frame upou the -axis of a cylinder in one of said recesses in wrapping position, chains traveling about said sprocket wheels, a divided belt secured to said chains and adapted to pass into said recesses closely adjacent the inner surfaces thereof and about a cylinder to be wrapped therein, stationary gathering means s up'- ported in spaced relation for revolution' of said member therebetween acting to gather the projecting ends of a Wrapper, carried about a cylinder in the recess by said divided belt, in contact with the ends of the cylinder` in the act of cylinder.

GLENN A. sHAFrER; FRANKLIN H. S

placing the wrapper about the 

